Illuminating device

Abstract

Disclosed is a lighting device which comprises: an optical member comprising a protruding optical pattern forming a gap with an adjacent layer; at least one light emitting unit inserted into the optical member; and a resin layer formed on the optical member and the at least one light emitting unit, whereby it is possible to obtain an effect that the shapes of light change depending on the viewing angle when viewing the light source by producing various protruding optical patterns, an effect that the whole thickness can be reduced, and an effect that the degree of design freedom can be enhanced when designing products thanks to an enhanced flexibility.

What is claimed is: 
     
       1. A lighting device, comprising:
 a printed circuit board; 
 a resin layer disposed on the printed circuit board; 
 a lighting emitting unit disposed on the printed circuit board; 
 a first optical member disposed in contact with the resin layer; and 
 a reflection member disposed between the resin layer and the printed circuit board, 
 wherein the first optical member comprises a base member and a plurality of protrusion optical patterns disposed on the base member, 
 wherein the plurality of protrusion optical patterns is disposed on a first surface of the base member and the resin layer is disposed on a second surface opposite to the first surface of the base member, and 
 wherein the lighting emitting unit is arranged to penetrate the reflection member. 
 
     
     
       2. The lighting device of  claim 1 , wherein the resin layer comprises a plurality of light diffusers. 
     
     
       3. The lighting device of  claim 2 , wherein the plurality of light diffusers is selected from the group consisting of silicon, silica, glass bubble, PMMA, urethane, Zn, Zr, Al2O3, and acryl. 
     
     
       4. The lighting device of  claim 1 , comprising a plurality of reflection patterns disposed on the reflection member. 
     
     
       5. The lighting device of  claim 1 , wherein the lighting emitting unit comprises a plurality of light emitting diodes,
 wherein the plurality of light emitting diodes are side view type. 
 
     
     
       6. The lighting device of  claim 1 , comprising a second optical member disposed on an upper portion of the resin layer. 
     
     
       7. The lighting device of  claim 6 , wherein a first spacing part is disposed between the resin layer and the second optical member. 
     
     
       8. The lighting device of  claim 1 , wherein the resin layer is formed of an ultraviolet ray thermosetting resin containing oligomer, and wherein the oligomer contains any one material selected from the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate, and acrylic acrylate. 
     
     
       9. The lighting device of  claim 1 , wherein the light emitting unit is in direct physical contact with the printed circuit board. 
     
     
       10. A lighting device, comprising:
 a printed circuit board; 
 a resin layer disposed on the printed circuit board; 
 a lighting emitting unit disposed on the printed circuit board; 
 a first optical member disposed in contact with the resin layer; 
 a reflection member disposed between the resin layer and the printed circuit board; and 
 a second optical member disposed on an upper portion of the resin layer, 
 wherein the first optical member comprises a base member and a plurality of protrusion optical patterns disposed on the base member, 
 wherein the plurality of protrusion optical patterns is disposed on a first surface of the base member and the resin layer is disposed on a second surface opposite to the first surface of the base member, 
 wherein a first spacing part is disposed between the resin layer and the second optical member, and 
 wherein the first optical member is disposed between the first spacing part and the reflection member. 
 
     
     
       11. The lighting device of  claim 10 , wherein the resin layer comprises a plurality of light diffusers, wherein the plurality of light diffusers is selected from the group consisting of silicon, silica, glass bubble, PMMA, urethane, Zn, Zr, Al 2 O 3 , and acryl. 
     
     
       12. The lighting device of  claim 10 , comprising a plurality of reflection patterns disposed on the reflection member. 
     
     
       13. A lighting device, comprising:
 a printed circuit board; 
 a resin layer disposed on the printed circuit board; 
 a lighting emitting unit disposed on the printed circuit board; and 
 a first optical member disposed in contact with the resin layer, 
 wherein the first optical member comprises a base member and a plurality of protrusion optical patterns disposed on the base member, 
 wherein the plurality of protrusion optical patterns is disposed on a first surface of the base member and the resin layer is disposed on a second surface opposite to the first surface of the base member, and 
 wherein a side surface of the protrusion optical pattern and the first surface of the base member form an acute angle. 
 
     
     
       14. The lighting device of  claim 13 , wherein a cross-sectional shape of the protrusion optical pattern comprises a triangular shape. 
     
     
       15. The lighting device of  claim 13 , wherein the resin layer comprises a plurality of light diffusers, wherein the plurality of light diffusers is selected from the group consisting of silicon, silica, glass bubble, PMMA, urethane, Zn, Zr, Al 2 O 3 , and acryl. 
     
     
       16. The lighting device of  claim 13 , comprising a plurality of reflection patterns disposed on the reflection member.